EP1894298B1 - Machine combinee polyvalente - Google Patents

Machine combinee polyvalente Download PDF

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Publication number
EP1894298B1
EP1894298B1 EP06779733.2A EP06779733A EP1894298B1 EP 1894298 B1 EP1894298 B1 EP 1894298B1 EP 06779733 A EP06779733 A EP 06779733A EP 1894298 B1 EP1894298 B1 EP 1894298B1
Authority
EP
European Patent Office
Prior art keywords
motor
machine according
transmission box
rotation direction
motor means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06779733.2A
Other languages
German (de)
English (en)
Other versions
EP1894298A1 (fr
Inventor
Marino Pedrazzini Bertolazzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ital Research & Innovation Srl
Original Assignee
ITAL RES & INNOVATION Srl
Ital Research & Innovation Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ITCR20050009 external-priority patent/ITCR20050009A1/it
Priority claimed from ITCR20050018 external-priority patent/ITCR20050018A1/it
Application filed by ITAL RES & INNOVATION Srl, Ital Research & Innovation Srl filed Critical ITAL RES & INNOVATION Srl
Publication of EP1894298A1 publication Critical patent/EP1894298A1/fr
Application granted granted Critical
Publication of EP1894298B1 publication Critical patent/EP1894298B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/065—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with a plurality of driving or driven shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/112—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches in combination with brakes
    • H02K7/1125—Magnetically influenced friction clutches and brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19019—Plural power paths from prime mover
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19079—Parallel
    • Y10T74/19084—Spur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19172—Reversal of direction of power flow changes power transmission to alternate path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19233—Plurality of counter shafts

Definitions

  • the invention relates to the field of operating machines such as pumps, compressors, fans and aspirators for do-it-yourself, maintenance and washing of cars, use in workshops, cleaning also at a professional level, and so on.
  • the invention relates in particular to a multipurpose combined machine, provided with two or more devices, for example a high-pressure pump and an air compressor, powered independently by a single motor.
  • a known combined machine from a previous patent of the applicant ( WO 2004/107534 ), comprises two apparatuses, for example a pump and a compressor, powered by a single electric motor, by means of two freewheel bearings. More in detail, the motor is provided with a selector that reverses its rotation direction and the pump and the compressor are connected to the motor shaft respectively by a first and a second freewheel bearing, with an opposite engaging direction. Motion is then transmitted to the pump or the compressor simply by reversing motor rotation.
  • the bearings can be housed directly in the oscillating wobble plate (if present), or between the pin of the motor and the shaft of the pump, instead of the commonly used rigid tab.
  • the freewheel may constitute the connection between the motor shaft and the stem (or connecting rod) of the piston that compresses the air.
  • a limit of the aforementioned embodiments is then that they are well suited for use with electric motors but are less suited to use with combustion engines. The latter may be preferred for professional machines, when significant power and/or independence from the main power supply is required.
  • Another drawback of above disclosed embodiments is that there are at most two operating machines, and they are always driven at the same rotating speed of the motor.
  • the object of the invention is to overcome these drawbacks: more in detail, the main objects are: to eliminate the need to modify the motor and/or the operating machines (pump, compressor, etc%) to fit freewheel bearings; to enable, in principle, the use of any type of electric motor, including sealed motors, and of both a 4-stroke and 2-stroke combustion engine; to drive, by means of a single motor, also two or more machines; to make the speed of the operating machines independent, if necessary, of motor speed.
  • the motor means comprises a motor with a reversible rotation direction; preferably an electric motor with a suitable forward / reverse selector, or an internal combustion (i.c.) engine that is able to run in both directions, typically a two-stroke engine.
  • a motor with a reversible rotation direction preferably an electric motor with a suitable forward / reverse selector, or an internal combustion (i.c.) engine that is able to run in both directions, typically a two-stroke engine.
  • the motor means comprises an engine or motor with a single rotation direction, for example a four-stroke i.c. engine, or an electric motor without the aforementioned selector, and a reversing device of the rotation direction is provided, said device being positioned between the motor and the transmission unit.
  • Said reversing device substantially enables to selectively reverse the direction of the rotation transmitted by the motor to the inlet shaft of the transmission unit.
  • the reversing device can be of any per se known type, for example mechanical or hydraulic.
  • the motor means also comprises an electric generator, and preferably comprises an electricity generating group formed by a electric generator and a (two or four-stroke) combustion engine, providing a power source for tools such as a drill, welding unit, etc...
  • the transmission box comprises a plurality of freewheel bearings, arranged for respectively driving each of the outlet shafts.
  • the transmission box is geared and comprises freewheel bearings associated directly with some of the transmission gear wheels. More in detail, the freewheel bearings are mounted between the gear wheel and the respective shaft, which may be one of the outlet shafts or an internal secondary shaft.
  • the transmission unit can also be provided with a clutch on the inlet shaft; said clutch, if provided, is preferably of the magnetic type.
  • the motor means can also be obtained, for example, with a commercial motor-pump unit.
  • the invention has multiple advantages. Above all, there is no need of freewheel bearings inserted in the motor or the machines, because the bearings are housed in the appropriate transmission box. As a result, the above disclosed problems such as overheating of the bearings are avoided; no modification of the motor and/or of the machines is necessary for the mounting thereof.
  • i.c. engine and in particular the four-stroke i.c. engine, may be preferable at the semiprofessional or professional level, when significant power and/or independence from the mains power supply are required.
  • the invention allows a completely free choice of gear ratios, according to the features of the engine and of the machines.
  • Another advantage is the possibility of coupling even three or more machines to the same motor, creating for example a monobloc pump-compressor-aspirator item.
  • Fig. 1 shows the diagram of a combined machine that, in essential terms, comprises motor means M, a transmission unit (or box) 1, and a plurality of suitable operating machines, for example a high-pressure pump H, a compressor C and a fan V.
  • suitable operating machines for example a high-pressure pump H, a compressor C and a fan V.
  • the motor means M comprises an electric motor 2 whose rotation direction is reversible through a suitable selector S.
  • the transmission box 1 basically, has an inlet shaft 3 and a plurality of outlet shafts 4a-4c with respective freewheel bearings 5a-5c. Each of the outlet shafts 4a-4c is driven by the corresponding freewheel bearing 5a-5c, as schematised.
  • the inlet shaft 3 is connected to the shaft of the motor 2 by a joint 6 or other known connecting means.
  • the illustrated diagram refers in greater detail to a gear transmission, with a pinion 7 splined on the inlet shaft 3, that drives a series of gear wheels 8a-8c.
  • each freewheel bearing has an internal ring fixed to the shaft, and an external ring fixed to the gear wheel.
  • This assembly is advantageous in terms of compactness and simplicity; the gear wheels are always engaged and always rotate during operation but mechanical power is transferred to the outlet shaft only in the engaging direction of the corresponding freewheel; on the other hand the gear wheel rotates "idle" on the shaft thereof.
  • the transmission unit in addition to the box 1, may as an option comprise a clutch 9 on the inlet shaft 3, that enables the motor to be "detached".
  • the clutch 9, if provided, is preferably a magnetic clutch.
  • the box 1 may, for example, comprise a gearing-up or down transmission.
  • outlet shafts may obviously vary, according to requirements. Also the inlet shafts may be more than one, for connecting a single transmission to several motors.
  • the gear ratios between the inlet shaft 3 and the outlet shafts 4a-4c are free: in practice the transmission unit may constitute a step-down gear, a step-up gear, or simply have a 1:1 gear ratio; the ratios of the outlet shafts 4a-4c may be the same or different, according to the type of machine or external power shaft that is to be associated with each of outlet shafts 4a-4c.
  • the freewheel bearings 5a-5c are each mounted with a predetermined engaging direction; as a result, by changing the direction of the motor 2 some of the operating machines are stopped and others are started, depending the rotation direction of the corresponding gear wheel and/or the engaging direction of the freewheel.
  • FIG. 1 provides the reversal of the rotation direction directly at the motor outlet. It is therefore suitable for the use of an electric motor with a rotation selector or, possibly, a two-stroke combustion engine that can be started in both directions.
  • the diagram of Fig. 2 refers to a combined machine powered by a motor 20 with a single rotation direction, for example a four-stroke i.c. engine that, as known, runs in one direction only, due to the non-symmetrical distribution (valve opening and closing).
  • a reversing device D is placed at the motor outlet 20 and enables the rotation direction transmitted by said motor 20 to the inlet shaft 3 of the transmission unit 1 to be selectively reversed.
  • the invention enables a single-rotation direction engine, in particular a four-stroke internal combustion engine, to be used.
  • the inlet shaft 3 is connected to the motor 20 by means of the reversing device D; through the effect of said reversing device D, therefore, the inlet shaft 3 can rotate in the same direction as the engine 20 or in an opposite direction.
  • the reversing device D can be of any known type, for example mechanical or hydraulic.
  • said reversing device D is a drive of type known as "static direction inverter unit", for example the Sauer Danfoss Series 70 model.
  • the transmission unit 1 furthermore, has a plurality of outlet shafts 4a-4c, provided with respective freewheel bearings 5a-5c, similarly to the diagram in Fig. 1 , that drive the operating machines H, C, and V.
  • Figs. 3 and 4 two embodiments of the invention are shown that are substantially similar to those of Figs. 1 and 2 , but wherein the motor means M also comprises an electric generator G, driven by the motor 2 ( Fig. 3 ) or 20 ( Fig. 4 ). Said generator G provides at least a power source E that can be exploited for a drill, a welding unit, etc...
  • more complex embodiments can also be manufactured, for example with a single transmission box provided with several inlet shafts and connected to several motors, or with a motor provided with two power outlets (two shafts or two ends of the same shaft) that drives two transmission boxes of the disclosed type.
  • the motor means may also consist of a commercially available motor-pump unit (or similar) or motor-generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Claims (9)

  1. Machine combinée, telle qu'un compresseur-pompe ou similaire, comprenant des moyens motorisés (M) et une multitude de machines opérationnelles (H, C, V) qui peuvent être alimentées de manière indépendante par lesdits moyens motorisés, où :
    - la machine combinée comprend une boîte de transmission (1), placée entre les moyens motorisés (M) et lesdites machines opérationnelles (H, C, V), qui comprend un arbre d'entrée (3) raccordé auxdits moyens motorisés (M) et une multitude d'arbres de sortie (4a-4c) raccordés respectivement auxdites machines opérationnelles (H, C, V) ;
    - ladite boîte de transmission (1) comprend au moyen un roulement à roue libre (5a-5c) disposé pour entraîner un arbre de sortie respectif (4a- 4c) ;
    - la machine combine comprend également des moyens (S, D) pour inverser la direction de rotation donnée par lesdits moyens motorisés (M) audit arbre d'entrée (3) de la boîte de transmission (1),
    caractérisée par le fait que :
    - ledit arbre d'entrée et lesdits arbres de sortie sont alignés dans la même direction ;
    - la boîte de transmission (1) est constituée d'engrenages, comprenant une multitude de roues dentées (8a-8C), chacune d'elle étant montée directement sur un roulement à roue libre respectif (5a-5c).
  2. Machine combinée selon la revendication 1, caractérisée par le fait que lesdits moyens motorisés (M) comprennent un moteur (2) avec une direction de rotation réversible.
  3. Machine combinée selon la revendication 2, caractérisée par le fait que le moteur (2) est un moteur électrique avec un sélecteur (S) pour inverser la direction de rotation.
  4. Machine selon la revendication 1, caractérisée par le fait que les moyens motorisés comprennent un moteur (20) avec une seule direction de rotation et qu'un dispositif d'inversion (D) est prévu entre le moteur (20) et la boîte de transmission (1), ledit dispositif (D) étant adapté pour inverser sélectivement la direction de rotation transmise par ledit moteur (20) audit arbre d'entrée (3) de la boîte de transmission (1).
  5. Machine selon la revendication 4, caractérisée par le fait que le dispositif d'inversion (D) est le type mécanique ou hydraulique.
  6. Machine combine selon la revendication 4 ou 5, caractérisée par le fait que ledit moteur (20) est un moteur à combustion interne à quatre temps.
  7. Machine selon l'une des revendications précédentes, caractérisée par le fait que les moyens motorisés (M) comprennent un générateur électrique (G).
  8. Machine selon l'une des revendications précédentes, caractérisée par le fait que la boîte de transmission (1) comprend un roulement à roue libre respectif (5a-5c) pour chacun des arbres de sortie (4a-4c).
  9. Machine selon la revendication 1, caractérisée par le fait que lesdites roues dentées (8a-8c) s'engrènent directement sur les arbres de sortie (4a-4c) au moyen des roulements à roue libre (5a-5c).
EP06779733.2A 2005-06-23 2006-05-18 Machine combinee polyvalente Not-in-force EP1894298B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITCR20050009 ITCR20050009A1 (it) 2005-06-23 2005-06-23 Gruppo di trasmissione per macchine combinate
ITCR20050018 ITCR20050018A1 (it) 2005-12-21 2005-12-21 Perfezionamento di macchina combinata
PCT/IB2006/001653 WO2006136913A1 (fr) 2005-06-23 2006-05-18 Machine combinee polyvalente

Publications (2)

Publication Number Publication Date
EP1894298A1 EP1894298A1 (fr) 2008-03-05
EP1894298B1 true EP1894298B1 (fr) 2018-10-10

Family

ID=37023120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06779733.2A Not-in-force EP1894298B1 (fr) 2005-06-23 2006-05-18 Machine combinee polyvalente

Country Status (4)

Country Link
US (1) US8011262B2 (fr)
EP (1) EP1894298B1 (fr)
ES (1) ES2702125T3 (fr)
WO (1) WO2006136913A1 (fr)

Families Citing this family (7)

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ITCR20080004A1 (it) * 2008-03-11 2009-09-12 Bertolazzi Marino Pedrazzini Scatola di trasmissione universale
US8621959B2 (en) * 2010-01-21 2014-01-07 GM Global Technology Operations LLC Compact active material actuated transmissions for driving multiple output loads from a single primary actuator
US10118242B2 (en) * 2010-06-17 2018-11-06 Illinois Tool Works Inc. Welding power supply with power take-off shaft
CN102536744B (zh) * 2010-12-14 2016-03-02 珠海格力电器股份有限公司 压缩机及使用该压缩机的空调器
DE102011116783A1 (de) * 2011-10-24 2013-04-25 Maxon Motor Ag Kraftübertragungseinheit für einen elektromotorisch betriebenen Antrieb und magnetorheologische Kupplung
AU2015217226B2 (en) 2014-02-11 2018-05-10 Mtd Products Inc Power equipment device with removable attachments with dog clutch and operator presence actuation coupling member
WO2016055005A1 (fr) * 2014-10-08 2016-04-14 苏州宝时得电动工具有限公司 Dispositif de nettoyage

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US5159854A (en) * 1990-07-31 1992-11-03 Zexel Corporation Gear drive unit
US20030129065A1 (en) * 2002-01-10 2003-07-10 Ming-Kuo Hu Air compressor, air storage, and high pressure cleaning machine structure

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JPS5788278A (en) * 1980-11-21 1982-06-02 General Mach Kk Pump-compressor unit
US5159854A (en) * 1990-07-31 1992-11-03 Zexel Corporation Gear drive unit
US20030129065A1 (en) * 2002-01-10 2003-07-10 Ming-Kuo Hu Air compressor, air storage, and high pressure cleaning machine structure

Also Published As

Publication number Publication date
WO2006136913A1 (fr) 2006-12-28
US8011262B2 (en) 2011-09-06
US20080202285A1 (en) 2008-08-28
ES2702125T3 (es) 2019-02-27
EP1894298A1 (fr) 2008-03-05

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